Saw-guard



(No Model.)

G. W. FISHER 81; E. MUNSELL.

SAW GUARD;

No 417,635. 7 Patented Dec. 17, 1889.

4 George WFM/w)" 7 Elz'Aha Magma.

N. PETER5. Pmwuma m m, Waslli c UNITED STATES PATENT OFFICE.

GEORGE VVQFISHER AND ELISHA MUNSELL, OF KEENE, NEW HAMPSHIRE;

SAW-GUARD.

SPECIFICATION forming part of Letters Patent No. 417,635, dated December17, 1889.

Application filed July. 30, 1889. Serial No. 319,139. (No model.)

To all whom it may concern:

Be it known that we, GEORGE W. FIsHER and ELISHA MUNsELL, citizens ofthe United States, residing at Keene, in the county of Cheshire andState of New Hampshire,- have invented new and useful Saw-Guards, ofwhich the following is a specification.

Our invention relates to improvements in saw-guards, and has for itsobject the provision of means whereby the guard may be adjusted to thediameter of the saw-blade, and also to take up the wear on the blade.

The invention consists in certain novel features hereinafter describedand claimed.

In the accompanying drawings, Figure 1 is aperspective View of ourimproved saw-guard in its operative position. Fig. 2 isasectional view011 the line w m of Fig. 1.

In carrying out our invention we form in the top of the table orwork-bench, adjacent to the saw, a transverse groove A, in which Wesecure the guide-plate B. This guide- I plate is provided inits upperside with a longitudinal dovetailed groove C, and near its ends has theslots or openings D, through which securing-screws are passed to fastenit to the table or workbench. Within the groove of this guide-plate B wearrange the slide E, the edges of which are dovetailed to fit the saidgroove, and thereby prevent the slide rising from the guide-plate. Theslide, by this arrangement, is also permitted to move longitudinally ofthe guide-plate, so as to be adjusted to and away from the saw-an bor,according to the diameter of the saw, and it is held at any desiredpoint of the guideplate by the set-screws F, mounted vertically in itsends and adapted to bind on the upper side of the guide-plate. Thesaw-guard G is secured rigidly to the upper face of the slide, andconsists substantially of an L-shaped plate having its lower arm securedto the slide and projecting from the side'of the same beyond the edge ofthe guide-plate, and having a vertical arm tapered and arc-shaped, so asto follow the edge of the saw, as clearly shown. The inner concave edgeof the vertical arm is beveled, so as to readily enter the division madein the board by the saw-blade.

The construction and arrangement of the parts of our device being thusmade known, the operation of the same will, it is thought, be readilyunderstood. The guide-plate is secured on the upper side of thework-bench adjacent to the saw-arbor, and the slide is adjusted so as tobring the guard adjacent to "the edge of the saw and then secured, aswill be readily understood. The boards'are then fed to the saw in theusual manner.

It will be observed that our improved device is very simple in itsconstruction, and that by its use the operator is enabled to quicklyadjust the guard, so as to take up the Wear of the saw, and also toremove one guard and substitute therefor another guard of a differentsize to correspond with the diameter of the saw. 7

The device is intended to prevent the teeth of the saw from catching inthe piece sawed off, or any other piece that may jar against the teeth,and for this purpose the vertical arm of the guard is arranged in rearof the saw-blade and in the same plane therewith. Serious accidents havefrequently been caused by the saw-teeth catching the piece sawed off andthrowing it violently toward the operator. These accidents are preventedby the use of the guard.

Having thus described our invention, what We claim, and desire to secureby Letters Patent, is

The combination of the guide-plate, the slide mounted thereon, and theguard secured to the slide and consisting substantially of an L-shapedbracket having its lower horizontal arm secured to the slide and havingan are-- shaped tapered vertical arm, as set forth.

I11 testimony that We claim the foregoing as our own we have heretoaffixed our signature in presence of two witnesses.

GEORGE WV. FISHER. ELISHA MUNSELL.

Witnesses HIRAM BLAKE, EDWARD ORR.

